.bg{
    position: fixed;
    left: 0;
    top:0;
    right: 0;
    bottom: 0;
    background-image: url("https://gw.alipayobjects.com/zos/rmsportal/TVYTbAXWheQpRcWDaDMu.svg");
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center center;
}
.auth {

    .title-info{
        text-align: center;
        margin-top: 100px;
        display: flex;
        align-items: center;
        justify-content: center;
        margin-bottom: 32px;
        img{
            width: 60px;
            height: 60px;
        }
        h2{
            margin: 0;
            margin-left: 18px;
        }
    }
    .form{
        width: 400px;
        margin: 0 auto;
        .item{
            margin-bottom: 16px;
            button{
                width: 100%;
            }
        }
    }

}